--- Hurry up! The bus is coming.--- Wait a minute. Don’t cross the street the traffic lights are green.
#55220
A
after
B
until
C
while
D
since
推荐题目
— What’s your new math teacher like?— Oh, he is very kind, ________ he looks serious.
#56022
A
though
B
because
C
if
D
and
A tourist will easily lose his way in Shanghai_____ he has a map or a guide.
#56219
A
if
B
since
C
while
D
unless
